Beelzebub
Ishiyama High is an exclusively delinquent institution where violence and anarchy are the norm. There is one rule, however, that is well acknowledged: do not cross first-year student Tatsumi Oga, Ishiyama's most vicious combatant. One day, while standing by a riverbed, Oga discovers a man floating downstream. After being collected by Oga, the guy splits down the center to expose a baby, who quickly builds a bond to him by crawling onto his back. This infant's full name is Kaiser de Emperana Beelzebub IV, or "Baby Beel" for short; he is the son of the Demon Lord! Hildegard, Beel's demon maid, also confronts Oga, as if finding the future Lord of the Underworld wasn't enough. Together, they strive to raise Baby Beel, but being surrounded by juvenile delinquents and demonic forces may prove to be a greater difficulty than they anticipated.